GCD of 663, 121, 233, 391 Calculator

Given Input numbers are 663, 121, 233, 391

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 663

List of positive integer divisors of 663 that divides 663 without a remainder.

1, 3, 13, 17, 39, 51, 221, 663

Divisors of 121

List of positive integer divisors of 121 that divides 121 without a remainder.

1, 11, 121

Divisors of 233

List of positive integer divisors of 233 that divides 233 without a remainder.

1, 233

Divisors of 391

List of positive integer divisors of 391 that divides 391 without a remainder.

1, 17, 23, 391

Greatest Common Divisior

We found the divisors of 663, 121, 233, 391 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 663, 121, 233, 391 is 1.

Therefore, GCD of numbers 663, 121, 233, 391 is 1

Given Input Data is 663, 121, 233, 391

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 663 is 3 x 13 x 17

Prime Factorization of 121 is 11 x 11

Prime Factorization of 233 is 233

Prime Factorization of 391 is 17 x 23

The above numbers do not have any common prime factor. So GCD is 1

Step1:

Let's calculate the GCD of first two numbers

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(663, 121) = 80223

GCD(663, 121) = ( 663 x 121 ) / 80223

GCD(663, 121) = 80223 / 80223

GCD(663, 121) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 233

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 233) = 233

GCD(1, 233) = ( 1 x 233 ) / 233

GCD(1, 233) = 233 / 233

GCD(1, 233) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 391

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 391) = 391

GCD(1, 391) = ( 1 x 391 ) / 391

GCD(1, 391) = 391 / 391

GCD(1, 391) = 1

GCD of 663, 121, 233, 391 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 868, 408, 900, 900
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• GCD of 216, 840, 655, 279
• GCD of 938, 394, 326, 917

1. What is the GCD of 663, 121, 233, 391?

GCD of 663, 121, 233, 391 is 1

2. Where do I get the detailed procedure to find GCD of 663, 121, 233, 391?

You can find a detailed procedure to find GCD of 663, 121, 233, 391 on our page.

3. How to find GCD of 663, 121, 233, 391 on a calculator?

You can find the GCD of 663, 121, 233, 391 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.